JP2000064254A - Refuse removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refuse removing device which is easily ready for the changes in quantity and size of the flowing-in refuse. SOLUTION: A dust removing device is provided with a support structure body constructed in a water channel W, a capturing screen 14 which is supported by the support structure body through a drive chain 12 in an elevating/lowering manner in the water passage, and a driving device to drive the drive chain 12 in a circulating manner, and captures and removes the floating refuse flowing into the water channel with the screen. The capturing screen is provided with frame bodies 36, 38, and screen bodies 40, 42, 44 fitted to the frame bodies in an attachable/detachable manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover for removing dust floating in a water channel by a screen.

[0002]

2. Description of the Related Art As a dust removing device, a dust removing device A for mechanically removing trapped dust is known as shown in FIG. This is a support structure 1 built in a waterway W,
The structure 1 is provided with a capture screen 3 which is supported by a drive chain 2 so as to be vertically movable in a water channel W, and a drive device 26 for circulating the drive chain 2.

As shown in FIGS. 5 and 6, the capture screen 3 is constructed as a plurality of buckets 4 having a water-permeable structure, and the end portions of each bucket 4 are rotatably supported by the drive chain 2. Has been done. As a result, the bucket 4 travels up and down by the drive chain 2, catches the dust G when rising on the front surface of the dust removing device A, and drops the dust G on the discharge trough when reversing at the folding portion B at the upper end. Then, from the rear surface of the dust removing device A to the lower folding part C
It is designed to return to the front surface of the dust removing device A through.

In this example, the bucket 4 has a bottom plate 5 having an uneven surface for scraping at its tip, a screen portion 6 formed in a lattice shape for maintaining water permeability, and a flat top plate 7.
It is configured by connecting and.

[0005]

By the way, in the above dust removing device, the amount and size of the inflowing dust G may change, and the effective mesh width (opening portion) of the screen portion 6 may be changed depending on the situation. Width) and the structure of the trapping surface may be changed. However, in the conventional dust removing device, since the screen portion 6 is formed integrally with the bucket 4,
In order to change the length of the effective mesh width of the screen portion 6 or change the structure of the trapping surface, it is necessary to replace the bucket 4 itself, which requires a lot of time and cost for the work.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a dust removing device which can easily cope with changes in the amount and size of dust G that flows in.

[0007]

According to a first aspect of the present invention, there is provided a support structure built in a water channel, and a capture screen supported by the support structure via a drive chain so as to be capable of moving up and down in the water channel. And a drive device that circulates the drive chain, wherein the screen captures and removes floating dust flowing down into the water channel, the capture screen being attached to the frame body and detachably attached to the frame body. A dust remover characterized by having a screen body formed therein.
As a result, by exchanging only the screen body,
It is possible to easily and quickly change the structure and size of the capturing surface according to the situation.

The invention according to claim 2 is the dust remover according to claim 1, wherein the frame body has a segment structure divided in the width direction of the water channel. Thus, by changing the number of segments lined up in the width direction of the water channel, it is possible to configure a capture screen of an arbitrary length, and it is not necessary to mold a large-sized member at a time. Operations such as resin injection are greatly simplified.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A dust remover A according to an embodiment of the present invention will be described below with reference to FIGS. This is a support structure 10 that is constructed in the water channel W in a vertical direction with the upper part inclined toward the downstream side, a drive chain 12 that circulates on both side ends of the support structure 10, and the drive chain 12. And a capture screen 14 that travels along a support structure 10 whose ends are supported. The support structure 10 is composed of a main frame 18 installed on the pedestal 16 beside the water channel W, and a pair of left and right side frames 22 supported by anchor portions 20 installed at the bottom of the water channel.

A guide groove for guiding the drive chain 12 is formed in the longitudinal direction on each of the side frames 22 on both sides.
The drive chain 12 is a sprocket 2 connected to a drive device 26 (see FIG. 4) provided on the upper portion of the main frame 18.
4 is engaged and can be circulated. The surface formed by the left and right drive chains 12 on the upstream side, that is, on the side where the drive chain 12 rises, is referred to as the chain traveling surface S.
Call. Below the upper folded portion B, a conveyor 28 that receives and discharges the dust G is provided.

As shown in FIG. 2 and FIG. 3, the capture screen 14 is constituted by scraping portions 30 and back plate portions 32 arranged alternately in the traveling direction of the drive chain 12.
The raking part 30 and the back plate part 32 are composed of a plurality of laterally divided segments 30a and 32a, as illustrated for the raking part 30 in FIG.
These segments 30a and 32a are connected by a bolt or the like via a flange portion 34.

Each segment 30a, 32a has a frame body 36, 38 having a predetermined cross-sectional shape and a screen body 40, 42, 44 for detachably covering the opening formed in the frame body.
And have. Each of these screen bodies 40, 42,
Reference numeral 44 constitutes a trapping surface for trapping the dust G flowing in the water channel W, and a plurality of types having different effective mesh widths and trapping surface structures are prepared according to the usage conditions. For example, in this embodiment, a plurality of crosspieces 48 are arranged at a predetermined pitch inside the outer frame 46 having substantially the same outer shape as the shapes of the openings of the frame bodies 36 and 38. Multiple types can be prepared. Alternatively, a net may be formed by covering the inside of the outer frame 46 with a wire or a mesh of an appropriate material.

In this embodiment, the frame members 36, 38 and the screen members 40, 42, 44 are molded by injecting plastic into the mold. As a material, for example, a plastic material such as a ring-opening polymer of a norbornene-based monomer having three or more rings modified with an elastomer is used. This is a two-liquid mixed molding material that can be molded at room temperature in a short time, and preferably has an elongation at break after molding of 10 to 100%. The materials for the frame bodies 36, 38 and the screen bodies 40, 42, 44 are not limited to ordinary resins, and resins made of a material reinforced with an appropriate material, metal, or the like may be used.

The scraping portion 30 is formed in a V-shaped cross section as shown in FIG. 2, and its corners are attached to the drive chain 12 with their corners protruding from the running surface S.
A scraping and capturing surface 50 that is substantially orthogonal to the traveling surface S,
And an inclined trapping surface 52 that is inclined at an angle. Back plate part 3
2 forms a flat trapping surface 54 along the traveling surface S. Thereby, the inclined trapping surface 5 of the upper scraping portion 30
An accommodating space 56 for accommodating the dust G is formed by 2 and the trapping surface 54 of the back plate portion 32 therebelow, and the scraping trapping surface 52 of the scraping portion 30 on the lower side thereof.

In this embodiment, since the frame has a segment structure divided in the horizontal direction, the segment 3
0a, 32a can be adapted to the width of the water channel W to form the capturing screen 14 of any length. Therefore, it is not necessary to mold the capturing screen 14 or hold an inventory of various lengths after receiving an order, thereby shortening the delivery period and simplifying the inventory management of the products. Moreover, it is not necessary to mold a large member at once,
Operations such as assembling the mold and injecting resin are greatly simplified. Further, the work of forming the segment using the molding die can be performed in another place in advance, and since the segment can be assembled at the site, the labor of the work at the site where the workability is poor can be reduced. .

For example, if it is predicted that there will be heavy rainfall on the upstream side and the amount of water flowing through the water channel W will increase, and if all the small dust G is captured, it will exceed the capacity of the dust removing device. The bodies 40, 42 and 44 are exchanged for ones having wide eyes. As a result, it is possible to continue the safe operation of the dust removing device while allowing a certain amount of dust G to flow out. On the contrary, when it is found that dust having a diameter smaller than usual has flowed in on the upstream side and the flow rate is relatively small, the screen body 40 composed of a mesh having a small mesh width,
42, 44, etc. are used.

In this embodiment, an example in which it is applied to a dust removing device in which the capturing screen 14 is composed of the scraping portion 30 and the back plate portion 32 is shown, but it is a bucket shape as shown in FIG. Of course, the screen body may be detachably attached to the capture screen.

[0018]

As described above, according to the present invention, it is possible to easily and quickly change the structure and size of the trapping surface by exchanging only the screen body, and therefore the inflowing dust. It is possible to provide a dust removing device that can easily and quickly respond to changes in the amount and size of the dust.

[Brief description of drawings]

FIG. 1 is a side view showing an overall structure of a dust remover according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of a screen of the dust removing device of FIG.

FIG. 3 is a perspective view showing a scraping portion of FIG.

FIG. 4 is a perspective view showing an overall configuration of a conventional dust removing device.

5 is an enlarged cross-sectional view showing a part of the screen of FIG.

6 is a perspective view of a bucket that constitutes the screen of FIG. 4. FIG.

[Explanation of symbols]

10 Support structure 12 drive chain 14 screen 30 scraping part 32 Back plate 30a, 32a segment 36,38 frame 40, 42, 44 screen body 48 piers 50, 52, 54 Capture surface A dust remover B Upper folded part C Lower folding part G trash W waterway

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshihiro Uchida             11-1 Haneda Asahi-cho, Ota-ku, Tokyo Co., Ltd.             Inside the EBARA CORPORATION (72) Inventor Sanya Tokura             2470 Takaoka Town, Suzuka City, Mie Prefecture Ebara Machinery Co., Ltd.             Inside the company (72) Inventor Koji Nishimura             2-13-1 Miyukicho, Muroran, Hokkaido             Ebara Environmental Techno in Hokkaido F-term (reference) 4D026 BA01 BC05 BE11 BG01

Claims (2)

[Claims] 1. A support structure built in a waterway, a capture screen supported by the support structure so as to be able to move up and down in the waterway via a drive chain, and a drive device for circulating the drive chain. In the dust removing device, which is provided with a screen to capture and remove floating dust flowing down into the water channel, the capture screen includes a frame body and a screen body detachably attached to the frame body. apparatus. 2. The frame body has a segment structure divided in the width direction of the water channel.
The dust remover described in.